http://www.tvdata.ru/Film Stock Footage on Soviet Science circa 1920th - 1930th. Time code : 03:4104:00- 04:05 Stock Photography of Nikolai Ivanovich Vavilov Russian plant geneticist (1887--1943 best known for having identified the centers of origin of cultivated plants. He devoted his life to the study and improvement of wheat, corn, and other cereal crops to sustain the global population.